import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;

public class TcpEchoClient {
    private Socket socket = null;

    public TcpEchoClient(String serverIp,int serverPort) throws IOException {
        socket = new Socket(serverIp,serverPort);
    }
    public void start(){
        System.out.println("客户端启动!");
    try(InputStream inputStream = socket.getInputStream();
        OutputStream outputStream = socket.getOutputStream()){
        Scanner scanner = new Scanner(inputStream);
        Scanner scannerIn = new Scanner(System.in);
        PrintWriter printWriter = new PrintWriter(outputStream);

        while (true){
            //1.从控制台读取服务器
            System.out.println("->");
            String request = scannerIn.next();
            //2.把请求发送给服务器
            printWriter.println(request);
            printWriter.flush();

            //3.从服务器读取响应
            if(!scanner.hasNext()){
                break;
            }
            String response = scanner.next();
            //4,打印响应结果
            System.out.println(response);
        }


        }catch (Exception e) {
        throw new RuntimeException(e);

        }

    }

    public static void main(String[] args) throws IOException {
        TcpEchoClient client = new TcpEchoClient("127.0.0.1",9090);

        client.start();
    }
}
